(The people who will receive the most torment on the Day of Resurrection are: a man who was killed by a Prophet or who killed a Prophet, an unjust ruler and one who mutilates (the dead).) Allah's statement,

[ذلِكَ بِمَا عَصَواْ وَّكَانُواْ يَعْتَدُونَ]

(That was because they disobeyed and used to transgress the bounds) mentions another reason why the Children of Israel were punished in this manner, for they used to disobey and transgress the limits. Disobedience is to do what is prohibited, while transgression entails overstepping the set limits of what is allowed and what is prohibited. Allah knows best.

(62. Verily, those who believe and those who are Jews and Christians, and Sabians (Sabi'in), whoever believes in Allah and the Last Day and does righteous good deeds shall have their reward with their Lord, on them shall be no fear, nor shall they grieve.)